EPA Method 515.1 Internal Standard Back Catalog number: 30023 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2060.6-5K-5IP 2,4,6-Tribromophenol, 5000µg/mL, Solvent-isopropanol, Unit 5mL, # of units-1, Cas.no. 118-79-6 Price on request 3301.24-K-IO Methyl 14-cis-tricosenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 50995-25-0 Price on request 53059 Tuning Solution- Method 200.7 section 7.7 Price on request